配方类型:

ADHESIVES

配方说明:

Tape Sealant (EPDM/Polybutene)

配方组成:

Sulfur/0.21
Zinc Oxide/2.02
Carbon Black (FEF)/8.08
Amoco Polybutene H-300/40.40
Stearic acid/0.41
Tetraethylthiuram Disulfide/0.27
Amoco Resin 18-210/8.08
Ethylene Propylene Terpolymer/40.40
2-Mercaptobenzothiazole/0.13

配制方法:

The EPDM is banded on a tight mill at 82 C (180 F) to 93 C (200 F) for 10 min. An H-300 Polybutene/carbon black slurry is prepared, added in increments and milled 30 min. Zinc oxide and stearic acid are added and dispersed (5-10 min). Resin 18-210 is added and dispersed (5-10 min). Accelerators are added and dispersed (5 min). Sulfur is added and milled for 5 min. Stock is then extruded into 0.5 in. x 0.5 in. tape and cured in a forced draft oven for 24 h before testing.
Note: Outstanding ozone and weather resistance suggest this formulation for automotive windshield and "high-rise" curtain wall applications. The compound uses a partially vulcanized ethylene propylene terpolymer extended and plasticized with H-300 Polybutene.